public class calc {
    public static void main(String[] args) {
       // System.out.println(3/0);
        System.out.println(3.0/0);
        System.out.println(3/2);//1
        System.out.println(2/3);//0
        System.out.println(3.0/2);//1.5
        System.out.println(-3.0/2);//-1.5
        int age=18;
        System.out.println(age++ + ++age);
    }
}
